/Engine/Plugins/Experimental/GeometryScripting/Source/GeometryScriptingCore/Public/GeometryScript/MeshNormalsFunctions.h
Get a list of single normal vectors for each mesh vertex in the TargetMesh, derived from the Normals Overlay. The Normals Overlay may store multiple normals for a single vertex (ie split normals) In such cases the normals can either be averaged, or the last normal seen will be used, depending on the bAverageSplitVertexValues parameter.
static [UDynamicMesh](API\Runtime\GeometryFramework\UDynamicMesh) * GetMeshPerVertexNormals ( [UDynamicMesh](API\Runtime\GeometryFramework\UDynamicMesh) * TargetMesh, [FGeometryScriptVectorList](API\Plugins\GeometryScriptingCore\GeometryScript\FGeometryScriptVectorList) & NormalList, bool & bIsValidNormalSet, bool & bHasVertexIDGaps, bool bAverageSplitVertexValues )